# SDR IKBR2020100500013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2020
- Submitted: October 8, 2020
- Operation: General aviation
- Filed by: [The Ohio State University Airport, repair station IKBR028F](https://openairdocs.org/faa-repair-station/IKBR028F/the-ohio-state-university-airport.md) (OpenAirDocs)
- Aircraft: [N737LG](https://openairdocs.org/aircraft/N737LG), registered now
- Make and model: Cessna 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Aircraft serial: 17269496
- Aircraft time: 3,279 hours
- Engine: Lyc O320H2AD
- Engine time: 3,113 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Condition: Cracked
- Location: Engine
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IKBR2020100500013

## Discrepancy

DURING 50HR INSPECTION FOUND CRACKED CYLINDER FIN AND BLENDED NR 1 CYLINDER COOLING FIN, AS PER LYCOMING O-320 OHM SECTION 6 PARAGRAPH 6-26(2).  ENGINE TSMOH 1627.0.

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